There is currently only one advanced feature in alterPod. More will be added when necessary/possible.
In the "Resources" tab, you will notice a switch named "All language resources". Enabling this switch will cause alterPod to read out all of the language strings. This creates many more files than usual, but gives access to the non-english strings.
Future versions of alterPod will include the ability to extract specific language strings, as opposed to the current method of extracting all of them.